Alea.scala

object Alea{

  private val rnd = new scala.util.Random

  /* Throw a die 
     @return Int in range 1 to 6 */
  def akta = rnd.nextInt(6) + 1
  /* Throw a die 
     @param number number of die
     @return Int sum of ints */  
  def akta(number:Int):Int = {
    require(number > 0, "number MUST be larger than 0")
    val range = 1 to number
    range.map(_ => akta).sum
  }
}

scala> Alea.akta
res2: Int = 5

scala> Alea.akta(100)
res3: Int = 343